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Table 7 Estimation of the predictive value of the randomisation group and severity score

From: Heckman imputation models for binary or continuous MNAR outcomes and MAR predictors

Methods (% used)

Assumed mechanisms

Oseltamivir Placebo

Zanamivir Placebo

Severity score

 

Adh.

Sev.

Coeff

SE

Coeff

SE

Coeff

SE

CCA (66%)

MCAR

MCAR

0.243

0.217

0.061

0.206

0.021

0.163

MI (100%)

MAR

MAR

0.380

0.205

0.055

0.183

0.035

0.163

HEml (79%)

MNAR

MCAR

0.272

0.268

0.077

0.223

0.048

0.223

MIHEml (100%)

MNAR

MAR

0.396

0.188

0.105

0.182

0.123

0.181

  1. Adh.: Adherence; Sev.: Severity score; Coeff: Coefficient; SE: Standard error; CCA: Complete case analysis; MI: Multiple imputation using classic imputation models; HEml: Heckman’s one-step ML estimation; MIHEml: Multiple imputation using Heckman’s one-step ML estimation